Diamond



FIG. 1 is a top plan view of a diamond showing my new design;

FIG. 2 is a side elevational view of the diamond of FIG. 1, the other sides being the same;

FIG. 3 is a bottom plan view of the diamond of FIG. 1;

FIG. 4 is a top plan view of a diamond showing a modified form of my new design;

FIG. 5 is a side elevational view of the diamond of FIG. 4; and

FIG. 6 is a bottom plan view of the diamond of FIG. 4. 

The ornamental design for a diamond, as shown and described. 